package com.liuhan.house.interceptor;

import com.liuhan.house.pojo.User;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.net.URLEncoder;

@Component
public class UserControllerInterceptor implements HandlerInterceptor {
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        User user = (User) request.getSession(true).getAttribute("user");
        if (user == null) {
            String msg = URLEncoder.encode("请先进行登录", "UTF-8");
            String target = URLEncoder.encode(request.getRequestURL().toString(), "UTF-8");
            response.sendRedirect("/user/login?errorMsg=" + msg + "&target=" + target);
        }
        return true;
    }

    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {

    }

    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {

    }
}
